January Weather in Gilbert, United States

Last updated: June 24, 2025

In January, the average temperature in Gilbert, United States is a crisp 9°C (48°F). During this time, temperatures can dip as low as -8°C (19°F) or soar to a pleasant 25°C (78°F). Expect 85 mm (3.4 in) of precipitation spread over 9 days, contributing to an average humidity of 86%. Be prepared for a mix of chilly and mild days!

January Temperature in Gilbert

In January in Gilbert, the average temperature is 9°C (48°F). Maximums can reach 25°C (78°F), while minimums can drop as low as -8°C (19°F). Be prepared for a wide range of temperatures, making it a perfect time to explore both outdoor activities and cozy indoor attractions.

January Weather in Gilbert: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Gilbert, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Gilbert, January typically has an average temperature of 9°C (48°F), with highs reaching up to 25°C (78°F) and lows dropping to around -8°C (19°F).

Data source: Temperature data for Gilbert generated using information from the Copernicus Climate Change Service.

January Precipitation in Gilbert

In Gilbert in January, the total precipitation amount is 85 mm (3.4 in) recorded over a span of 9 days.

January Precipitation Trends in Gilbert

The chart displays monthly precipitation patterns in Gilbert, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Gilbert, January typically receives around 85 mm (3.4 inches) of precipitation spread over approximately 9 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

January Humidity in Gilbert

In Gilbert in January, humidity is 86%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill that wraps around you, making outdoor activities uncomfortable and travel less enjoyable.

January Average Humidity in Gilbert

This chart illustrates the average monthly humidity levels in Gilbert, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Gilbert is approximately 86%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Gilbert

In Gilbert in January, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Gilbert for better planning.

Maximum UV Index Levels in Gilbert for January

The chart shows the monthly maximum UV Index (UVI) for Gilbert in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in Gilbert typically reaches 4, which falls under the moderate exposure category.

Data source: Gilbert January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How January Weather in Gilbert Compares to Other Months

Weather in Gilbert varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Gilbert, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Gilbert, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	9°C (48°F)	85 mm (3.4 inches)	86%	moderate
February Weather	11°C (53°F)	113 mm (4.5 inches)	81%	high
March Weather	14°C (57°F)	83 mm (3.2 inches)	81%	very high
April Weather	18°C (64°F)	111 mm (4.4 inches)	79%	very high
May Weather	23°C (73°F)	111 mm (4.4 inches)	75%	extreme
June Weather	26°C (78°F)	100 mm (3.9 inches)	75%	extreme
July Weather	27°C (81°F)	145 mm (5.7 inches)	80%	extreme
August Weather	27°C (80°F)	146 mm (5.8 inches)	81%	extreme
September Weather	25°C (77°F)	89 mm (3.5 inches)	83%	very high
October Weather	20°C (68°F)	78 mm (3.1 inches)	78%	very high
November Weather	13°C (55°F)	74 mm (2.9 inches)	85%	high
December Weather	10°C (51°F)	120 mm (4.7 inches)	87%	moderate